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Old 05-20-2010, 09:54 AM   #2
Big Evil
 
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Name: Big Evil
Title: Moderator
Status: Offline
Join Date: Nov 2008
Location: Tempe, Az
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Your Ride: 1994 BMW 525i, 1987 325is, 1986 325
Smoke check it, start with the vac system first, if it passes. Move on to fuel pressures, could be a fuel pump going away, could be a fuel regulator going away, could just need a new fuel filter. CA plays with their damn fuel blends so much it kills rubber components constantly (had a HUGE issue with it here in PHX a few years back). Fuel quality can prematurely clog up a filter if its bad and it only takes one tanker to contaminate hundreds of vehicle fuel systems.

Best bet, start with the basics (and least expensive), then work your way up systematically.
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Big Evil, The BMW driving monster of the American Southwest (Currently on BMW #5)
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